Base | Representation |
---|---|
bin | 10110101010101… |
… | …01011111011110 |
3 | 111020210020101020 |
4 | 23111111133132 |
5 | 342134024210 |
6 | 30511225010 |
7 | 4466120052 |
oct | 1325253736 |
9 | 436706336 |
10 | 190142430 |
11 | 9836a905 |
12 | 53818166 |
13 | 3051551a |
14 | 1b377c62 |
15 | 11a5d770 |
hex | b5557de |
190142430 has 32 divisors (see below), whose sum is σ = 458672544. Its totient is φ = 50445696.
The previous prime is 190142423. The next prime is 190142441. The reversal of 190142430 is 34241091.
It is a self number, because there is not a number n which added to its sum of digits gives 190142430.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10177 + ... + 21996.
It is an arithmetic number, because the mean of its divisors is an integer number (14333517).
Almost surely, 2190142430 is an apocalyptic number.
190142430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
190142430 is an abundant number, since it is smaller than the sum of its proper divisors (268530114).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
190142430 is a wasteful number, since it uses less digits than its factorization.
190142430 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 32380.
The product of its (nonzero) digits is 864, while the sum is 24.
The square root of 190142430 is about 13789.2142633291. The cubic root of 190142430 is about 575.0333238406.
The spelling of 190142430 in words is "one hundred ninety million, one hundred forty-two thousand, four hundred thirty".
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